If you want to find some really good astronomy books to read, try these two sites
www.fishpond.com.au
and
Abbeys Bookshop
The titles there should keep you all really busy
I just bought 4 books from Fishpond...."Meteorites, A Petrological, Chemical and Isotopic Synthesis", "The Galaxies of the Local Group", "Classification of Stellar Spectra" and "Mind in the Balance"....about $500 worth.